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Merge pull request #88667 from johnwilkins/HCIDOCS-548-4.16
HCIDOCS-548: Manual cherry pick for 88413
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installing/overview/installing-preparing.adoc

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@@ -62,12 +62,11 @@ For installer-provisioned infrastructure installations, you can use an existing
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You can use the installer-provisioned infrastructure method to create appropriate machine instances on your hardware for xref:../../installing/installing_vsphere/ipi/installing-vsphere-installer-provisioned.adoc#installing-vsphere-installer-provisioned[vSphere], and xref:../../installing/installing_bare_metal_ipi/ipi-install-overview.adoc#ipi-install-overview[bare metal]. Additionally, for xref:../../installing/installing_vsphere/ipi/installing-vsphere-installer-provisioned-network-customizations.adoc#installing-vsphere-installer-provisioned-network-customizations[vSphere], you can also customize additional network parameters during installation.
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For some installer-provisioned infrastructure installations, for example on the {vmw-first} and bare metal platforms, the external traffic that reaches the ingress virtual IP (VIP) is not balanced between the default `IngressController` replicas. For {vmw-short} and bare metal installer-provisioned infrastructure installations where exceeding the baseline `IngressController` router performance is expected, you must configure an external load balancer. Configuring an external load balancer achieves the performance of multiple `IngressController` replicas. For more information about the baseline `IngressController` performance, see xref:../../scalability_and_performance/optimization/routing-optimization.adoc#baseline-router-performance_routing-optimization[Baseline Ingress Controller (router) performance]. For more information about configuring an external load balancer, see xref:../../installing/installing_bare_metal_ipi/ipi-install-installation-workflow.adoc#nw-osp-configuring-external-load-balancer_ipi-install-installation-workflow[Configuring a user-managed load balancer].
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For some installer-provisioned infrastructure installations, for example on the {vmw-first} and bare metal platforms, the external traffic that reaches the ingress virtual IP (VIP) is not balanced between the default `IngressController` replicas. For {vmw-short} and bare-metal installer-provisioned infrastructure installations where exceeding the baseline `IngressController` router performance is expected, you must configure an external load balancer. Configuring an external load balancer achieves the performance of multiple `IngressController` replicas. For more information about the baseline `IngressController` performance, see xref:../../scalability_and_performance/optimization/routing-optimization.adoc#baseline-router-performance_routing-optimization[Baseline Ingress Controller (router) performance]. For more information about configuring an external load balancer, see xref:../../installing/installing_bare_metal_ipi/ipi-install-installation-workflow.adoc#nw-osp-configuring-external-load-balancer_ipi-install-installation-workflow[Configuring a user-managed load balancer].
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If you want to reuse extensive cloud infrastructure, you can complete a _user-provisioned infrastructure_ installation. With these installations, you manually deploy the machines that your cluster requires during the installation process. If you perform a user-provisioned infrastructure installation on xref:../../installing/installing_aws/upi/installing-aws-user-infra.adoc#installing-aws-user-infra[AWS], xref:../../installing/installing_azure/installing-azure-user-infra.adoc#installing-azure-user-infra[Azure], xref:../../installing/installing_azure_stack_hub/installing-azure-stack-hub-user-infra.adoc#installing-azure-stack-hub-user-infra[Azure Stack Hub], you can use the provided templates to help you stand up all of the required components. You can also reuse a shared xref:../../installing/installing_gcp/installing-gcp-user-infra-vpc.adoc#installing-gcp-user-infra-vpc[VPC on GCP]. Otherwise, you can use the xref:../../installing/installing_platform_agnostic/installing-platform-agnostic.adoc#installing-platform-agnostic[provider-agnostic] installation method to deploy a cluster into other clouds.
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You can also complete a user-provisioned infrastructure installation on your existing hardware. If you use xref:../../installing/installing_openstack/installing-openstack-user.adoc#installing-openstack-user[{rh-openstack}], xref:../../installing/installing_ibm_z/installing-ibm-z.adoc#installing-ibm-z[{ibm-z-name} or {ibm-linuxone-name}], xref:../../installing/installing_ibm_z/installing-ibm-z-kvm.adoc#installing-ibm-z-kvm[{ibm-z-name} and {ibm-linuxone-name} with {op-system-base} KVM], xref:../../installing/installing_ibm_power/installing-ibm-power.adoc#installing-ibm-power[{ibm-power-title}], or xref:../../installing/installing_vsphere/upi/installing-vsphere.adoc#installing-vsphere[vSphere], use the specific installation instructions to deploy your cluster. If you use other supported hardware, follow the xref:../../installing/installing_bare_metal/installing-bare-metal.adoc#installing-bare-metal[bare metal installation] procedure. For some of these platforms, such as xref:../../installing/installing_vsphere/upi/installing-vsphere-network-customizations.adoc#installing-vsphere-network-customizations[vSphere], and xref:../../installing/installing_bare_metal/installing-bare-metal-network-customizations.adoc#installing-bare-metal-network-customizations[bare metal], you can also customize additional network parameters during installation.
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You can also complete a user-provisioned infrastructure installation on your existing hardware. If you use xref:../../installing/installing_openstack/installing-openstack-user.adoc#installing-openstack-user[{rh-openstack}], xref:../../installing/installing_ibm_z/installing-ibm-z.adoc#installing-ibm-z[{ibm-z-name} or {ibm-linuxone-name}], xref:../../installing/installing_ibm_z/installing-ibm-z-kvm.adoc#installing-ibm-z-kvm[{ibm-z-name} and {ibm-linuxone-name} with {op-system-base} KVM], xref:../../installing/installing_ibm_power/installing-ibm-power.adoc#installing-ibm-power[{ibm-power-title}], or xref:../../installing/installing_vsphere/upi/installing-vsphere.adoc#installing-vsphere[vSphere], use the specific installation instructions to deploy your cluster. If you use other supported hardware, follow the xref:../../installing/installing_bare_metal/installing-bare-metal.adoc#installing-bare-metal[bare-metal installation] procedure. For some of these platforms, such as xref:../../installing/installing_vsphere/upi/installing-vsphere-network-customizations.adoc#installing-vsphere-network-customizations[vSphere], and xref:../../installing/installing_bare_metal/installing-bare-metal-network-customizations.adoc#installing-bare-metal-network-customizations[bare metal], you can also customize additional network parameters during installation.
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[id="installing-preparing-security"]
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* xref:../../storage/understanding-persistent-storage.adoc#understanding-persistent-storage[Persistent storage]
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* xref:../../authentication/understanding-identity-provider.adoc#understanding-identity-provider[An identity provider]
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* xref:../../observability/monitoring/configuring-the-monitoring-stack.adoc#configuring-the-monitoring-stack[Monitoring core OpenShift Container Platform components]
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* xref:../../observability/monitoring/configuring-the-monitoring-stack.adoc#configuring-the-monitoring-stack[Monitoring core {product-title} components]
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[id="installing-preparing-cluster-for-workloads"]
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== Preparing your cluster for workloads
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|xref:../../installing/installing_gcp/installing-gcp-network-customizations.adoc#installing-gcp-network-customizations[✓]
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|xref:../../installing/installing_bare_metal_ipi/ipi-install-installation-workflow.adoc#configuring-host-network-interfaces-in-the-install-config-yaml-file_ipi-install-installation-workflow[✓]
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|xref:../../installing/installing_bare_metal_ipi/ipi-install-installation-workflow.adoc#configuring-host-network-interfaces-in-the-install-config-yaml-file_ipi-install-installation-workflow[✓]
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|xref:../../installing/installing_vsphere/ipi/installing-vsphere-installer-provisioned-network-customizations.adoc#installing-vsphere-installer-provisioned-network-customizations[✓]
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|xref:../../installing/installing_ibm_cloud_public/installing-ibm-cloud-network-customizations.adoc#installing-ibm-cloud-network-customizations[✓]
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